Alright, let's solve this math problem step by step. First, we have the number 813. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 162. So, we're going to take the number 813 and add it to itself 162 times.
Step 1: 0 + 813 = 813
Step 2: 813 + 813 = 1626
Step 3: 1626 + 813 = 2439
Step 4: 2439 + 813 = 3252
Step 5: 3252 + 813 = 4065
Step 6: 4065 + 813 = 4878
Step 7: 4878 + 813 = 5691
Step 8: 5691 + 813 = 6504
Step 9: 6504 + 813 = 7317
Step 10: 7317 + 813 = 8130
Step 11: 8130 + 813 = 8943
Step 12: 8943 + 813 = 9756
Step 13: 9756 + 813 = 10569
Step 14: 10569 + 813 = 11382
Step 15: 11382 + 813 = 12195
Step 16: 12195 + 813 = 13008
Step 17: 13008 + 813 = 13821
Step 18: 13821 + 813 = 14634
Step 19: 14634 + 813 = 15447
Step 20: 15447 + 813 = 16260
Step 21: 16260 + 813 = 17073
Step 22: 17073 + 813 = 17886
Step 23: 17886 + 813 = 18699
Step 24: 18699 + 813 = 19512
Step 25: 19512 + 813 = 20325
Step 26: 20325 + 813 = 21138
Step 27: 21138 + 813 = 21951
Step 28: 21951 + 813 = 22764
Step 29: 22764 + 813 = 23577
Step 30: 23577 + 813 = 24390
Step 31: 24390 + 813 = 25203
Step 32: 25203 + 813 = 26016
Step 33: 26016 + 813 = 26829
Step 34: 26829 + 813 = 27642
Step 35: 27642 + 813 = 28455
Step 36: 28455 + 813 = 29268
Step 37: 29268 + 813 = 30081
Step 38: 30081 + 813 = 30894
Step 39: 30894 + 813 = 31707
Step 40: 31707 + 813 = 32520
Step 41: 32520 + 813 = 33333
Step 42: 33333 + 813 = 34146
Step 43: 34146 + 813 = 34959
Step 44: 34959 + 813 = 35772
Step 45: 35772 + 813 = 36585
Step 46: 36585 + 813 = 37398
Step 47: 37398 + 813 = 38211
Step 48: 38211 + 813 = 39024
Step 49: 39024 + 813 = 39837
Step 50: 39837 + 813 = 40650
Step 51: 40650 + 813 = 41463
Step 52: 41463 + 813 = 42276
Step 53: 42276 + 813 = 43089
Step 54: 43089 + 813 = 43902
Step 55: 43902 + 813 = 44715
Step 56: 44715 + 813 = 45528
Step 57: 45528 + 813 = 46341
Step 58: 46341 + 813 = 47154
Step 59: 47154 + 813 = 47967
Step 60: 47967 + 813 = 48780
Step 61: 48780 + 813 = 49593
Step 62: 49593 + 813 = 50406
Step 63: 50406 + 813 = 51219
Step 64: 51219 + 813 = 52032
Step 65: 52032 + 813 = 52845
Step 66: 52845 + 813 = 53658
Step 67: 53658 + 813 = 54471
Step 68: 54471 + 813 = 55284
Step 69: 55284 + 813 = 56097
Step 70: 56097 + 813 = 56910
Step 71: 56910 + 813 = 57723
Step 72: 57723 + 813 = 58536
Step 73: 58536 + 813 = 59349
Step 74: 59349 + 813 = 60162
Step 75: 60162 + 813 = 60975
Step 76: 60975 + 813 = 61788
Step 77: 61788 + 813 = 62601
Step 78: 62601 + 813 = 63414
Step 79: 63414 + 813 = 64227
Step 80: 64227 + 813 = 65040
Step 81: 65040 + 813 = 65853
Step 82: 65853 + 813 = 66666
Step 83: 66666 + 813 = 67479
Step 84: 67479 + 813 = 68292
Step 85: 68292 + 813 = 69105
Step 86: 69105 + 813 = 69918
Step 87: 69918 + 813 = 70731
Step 88: 70731 + 813 = 71544
Step 89: 71544 + 813 = 72357
Step 90: 72357 + 813 = 73170
Step 91: 73170 + 813 = 73983
Step 92: 73983 + 813 = 74796
Step 93: 74796 + 813 = 75609
Step 94: 75609 + 813 = 76422
Step 95: 76422 + 813 = 77235
Step 96: 77235 + 813 = 78048
Step 97: 78048 + 813 = 78861
Step 98: 78861 + 813 = 79674
Step 99: 79674 + 813 = 80487
Step 100: 80487 + 813 = 81300
Step 101: 81300 + 813 = 82113
Step 102: 82113 + 813 = 82926
Step 103: 82926 + 813 = 83739
Step 104: 83739 + 813 = 84552
Step 105: 84552 + 813 = 85365
Step 106: 85365 + 813 = 86178
Step 107: 86178 + 813 = 86991
Step 108: 86991 + 813 = 87804
Step 109: 87804 + 813 = 88617
Step 110: 88617 + 813 = 89430
Step 111: 89430 + 813 = 90243
Step 112: 90243 + 813 = 91056
Step 113: 91056 + 813 = 91869
Step 114: 91869 + 813 = 92682
Step 115: 92682 + 813 = 93495
Step 116: 93495 + 813 = 94308
Step 117: 94308 + 813 = 95121
Step 118: 95121 + 813 = 95934
Step 119: 95934 + 813 = 96747
Step 120: 96747 + 813 = 97560
Step 121: 97560 + 813 = 98373
Step 122: 98373 + 813 = 99186
Step 123: 99186 + 813 = 99999
Step 124: 99999 + 813 = 100812
Step 125: 100812 + 813 = 101625
Step 126: 101625 + 813 = 102438
Step 127: 102438 + 813 = 103251
Step 128: 103251 + 813 = 104064
Step 129: 104064 + 813 = 104877
Step 130: 104877 + 813 = 105690
Step 131: 105690 + 813 = 106503
Step 132: 106503 + 813 = 107316
Step 133: 107316 + 813 = 108129
Step 134: 108129 + 813 = 108942
Step 135: 108942 + 813 = 109755
Step 136: 109755 + 813 = 110568
Step 137: 110568 + 813 = 111381
Step 138: 111381 + 813 = 112194
Step 139: 112194 + 813 = 113007
Step 140: 113007 + 813 = 113820
Step 141: 113820 + 813 = 114633
Step 142: 114633 + 813 = 115446
Step 143: 115446 + 813 = 116259
Step 144: 116259 + 813 = 117072
Step 145: 117072 + 813 = 117885
Step 146: 117885 + 813 = 118698
Step 147: 118698 + 813 = 119511
Step 148: 119511 + 813 = 120324
Step 149: 120324 + 813 = 121137
Step 150: 121137 + 813 = 121950
Step 151: 121950 + 813 = 122763
Step 152: 122763 + 813 = 123576
Step 153: 123576 + 813 = 124389
Step 154: 124389 + 813 = 125202
Step 155: 125202 + 813 = 126015
Step 156: 126015 + 813 = 126828
Step 157: 126828 + 813 = 127641
Step 158: 127641 + 813 = 128454
Step 159: 128454 + 813 = 129267
Step 160: 129267 + 813 = 130080
Step 161: 130080 + 813 = 130893
Step 162: 130893 + 813 = 131706

So, 813*162 = 131706